JVC UX-S77 Service Manual page 19

3.2.2 Removing the DVD servo board
(See Figs.6 to 8)
Caution:
Solder the short land sections d on the DVD pickup before dis-
connecting the card wire extending from the DVD pickup. If
you do not follow this instruction, the DVD pickup may be dam-
aged.
(1) From the topside of the DVD changer mechanism assem-
bly, solder the short land sections d on the DVD pick up.
(See Fig.6.)
(2) From the bottom side of the DVD changer mechanism as-
sembly, disconnect the card wire from the connectors
(CN201, CN451) on the DVD servo board. (See Fig.7.)
(3) Disconnect the wires from the connectors (CN452, CN453)
on the DVD servo board. (See Fig.7.)
(4) Remove the screw B attaching the earth wire. (See Fig.7.)
Reference:
After attaching the earth wire, fix it with the spacer as be-
fore. (See Fig.7.)
(5) Remove the two screws C attaching the DVD servo board.
(See Fig.7.)
(6) From the reverse side of the DVD servo board, release the
lock of the connector CN101
and disconnect the card wire. (See Fig.8.)
Caution:
Unsolder the solders from the short land sections d after reas-
sembling. (See Fig.6.)
3.2.3 Removing the switch board
(See Fig.7)
• Prior to performing the following procedures, remove the DVD
servo board.
(1) From the bottom side of the DVD changer mechanism as-
sembly, remove the screw D attaching the switch board to
the DVD changer mechanism assembly.
(2) Loosen the screw E attaching the DVD traverse mecha-
nism assembly and take out the switch board while lifting
the section e of the DVD traverse mechanism assembly.
(3) Release the wires from the slots f of the switch board.
Reference:
When reassembling, pass the wire through the section g of the
DVD traverse mechanism assembly.
in the direction of the arrow
Short land sections d
DVD changer mechanism assembly
Fig.6
DVD changer mechanism assembly
CN452
Card wire
B
Earth wire
C
CN451
C
DVD servo board
DVD traverse mechanism assembly
Fig.7
DVD servo board
Fig.8
DVD pickup
CN453
Wires
g
Switch board
D
f
E
e
CN201
Card wire
CN101
Lock
Card wire
(No.MB230)1-19